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JEE MATHEMATICS MCQ: STATISTICS

1 Easy

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Application +4 | -1

The mean height of 15 students is

154 \mathrm{~cm}

. It is discovered later on that while calculating the mean the reading

175 \mathrm{cm}

. was wrongly read as

145 \mathrm{~cm}

. The correct mean height is

View answer and explanation

Correct option: C

156 \mathrm{~cm}

Option C (156 cm) is correct because it calculates the correct mean by adjusting the sum of heights based on the error.

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